Okamsn wrote:
> Hello,
> 
> After testing it more, I see that what I've written does not work as I
> expected in the case
> 
> (let ((v    (vector (vector 0 1)
>                       (vector 2 3)
>                       (vector 4 5))))
>     (setf (seq-subseq (seq-subseq (elt v 0) 0) 0)
>           [10])
>     v)
> 
> in which I would expect it to replace the first element of the first
> sub-vector with 10. I will take more time to continue working on this.
> 
> Thank you for your patience.
> 
> 

Hello,

I found a way to work with subplaces, like in the example in my previous 
e-mail message. Instead of creating the generic feature `(setf 
seq-subseq)` like what is done for `seq-elt`, I created a generic 
function `seq-replace`, which is used in a new `gv-expander` for 
`seq-subseq`. This way of doing it is like what is done for `substring`, 
which has the behavior that I wanted.

What do you think about this approach?

Thank you.